<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>初识vue</title>
    <script src="../js/vue.js"></script>
</head>
<body>
    <div class="app">
      <h2>{{ msg }}, {{ msg.toUpperCase()}}</h2>
        <p>{{ address }}</p>
    </div>
</body>
<script>
    // 动态渐进式构建用户界面 - 关注点-UI
    Vue.config.productionTip = false
    const vm = new Vue({
        el: '.app',
        data: {
            msg: "hello msg",
            address: '北京'
        }
    })
</script>
</html>